Click the left menu. This section contains tutorials for developers who wants to customize the look and feel of Drupal.
For developers who want to customize Drupal themes, they will want to read Theme Guide for Drupal 6. Whenever writing PHP code, it is important to keep security in mind. Hence, Writing Secured Drupal Code is a must-read.
For Administrators as well as developer, there is also a Best Practices Guide.
If you have a site with one or a few content authors, you generally do not need a login form right on the front page of the site, here is a tutorial that will show you how to hide the login form.
Often before you do major functionality changes on your Drupal site, you may want to check if there is a contributed module that does what you want. Here are some modules that we have found useful.
When performing upgrades, you may need to determine the Drupal version and download older Drupal archive code in order to perform code comparison and merges.
